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Halothane is used as a general anaesthesia for all types of surgeries.

How it works

Halothane belongs to a class of inhalational anaesthetic agents. Halothane acts in the brain (central nervous system) and causes temporary state of unconsciousness during surgeries.

Common side effects

Decreased blood pressure, Heart attack, Altered heart rate, High grade fever, Liver damage, Jaundice, Nausea, Respiratory arrest, Shivering, Vomiting


Expert advice

  • Inform your doctor regarding your recent anaesthetic history, as halothane is known to cause liver damage and frequent re-exposures may cause severe liver toxicity.
  • You may be constantly monitored during entire anaesthetic procedure to observe any signs of low blood pressure, changes in pulse rate, irregular heart beat and ventilation.
  • Your ventilation will be carefully assessed to ensure adequate oxygenation and carbon dioxide removal.
  • Tell your doctor if you are pregnant, planning to become pregnant or are breastfeeding.
  • Do not take if Patients allergic to halothane.
  • Do not take if Patient has a history of unexplained jaundice following previous exposure to halothane.
  • Do not take if Patient has a family history of malignant hyperthermia.
  • Do not take if Patient has history of high cerebrospinal fluid (fluid in brain and associated tissues) pressure or porphyria (a rare blood pigment disorder that affects skin and other organs.
  • Avoid if Patients requiring anaesthesia for gynaecological surgeries. 

Frequently asked questions


Q. Is halothane still used?
Yes, halothane is still used as a safe anesthetic drug in many parts of the world.
Q. Is halothane flammable?
Halothane is potent inflammable nor explosive inhalational anaesthetic.

Content on this page was last updated on 30 September, 2016, by Dr. Varun Gupta (MD Pharmacology)